It's better if folks get more training but....this is not an ideal world.

You share the road every day with drunks, meth-heads, innattentive smartphone operators and kids who learned to drive by playing Grand Theft Auto on their Xbox.

They have driver's licenses. Doesn't mean they know how to drive.
(And the ones who no longer have licenses - still drive.)

Near as I can tell, the risk that I'll be killed by one of these licensed drivers is far, far greater than any danger I face from sub-optimum gun handling.

Right but when one of these "drivers" kills someone you do not see other meth-heads & cell phone users making excuses for the negligent killer like you do when it happens with a gun.

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-Fast is fine, but accurate is final. The trick is learning to take your time when you're in a hurry." -Wyatt Earp
-Its a tool box... I don't care you put the tools in for the job that's all... -Sam from Ronin
-It is the mark of an educated mind to be able to entertain a thought without accepting it. -Aristotle
-Without deviation from the norm, progress is not possible.-Frank Zappa